Sailors assigned to the Arleigh Burke-class guided-missile destroyer USS Mustin (DDG 89) attach cargo to a helicopter assigned to the dry cargo and ammunition ship USNS Washington Chambers (T-AKE 11) during a vertical replenishment. Mustin is underway conducting operations in support of security and stability in the Indo-Pacific while assigned to Destroyer Squadron (DESRON) 15, the Navy’s largest forward-deployed DESRON and the U.S. 7th Fleet’s principal surface force.